And it's not surprising that there should be disagreement - it'd be a little surprising if there was complete consensus on any foreign policy issue.

But with lots of good ideas, implementation is the key, and so we need to keep our eye on the ball as we go forward and make sure that people honor their pledges in terms of financial commitments, and that we actually use this money so that it makes a real difference.

Everyone I have spoken with so far recognises the need for the IRA to respond positively and every has said sooner is better than later and I think there is some concern if it does continue to delay much longer that the situation isn't going to remain the same.

So the president set out the policy guidance and said it had to take place in a multilateral fashion so that other countries in the region could be invested in the success of this process.

We have a model that we're following, and it's the Libya model.

Sometimes we tend to focus more on the personalities and the conflicts, and it really caricatures the issues.